Advanced Control System (Apocalypse)
An X-COM developed accuracy module on (brain)steroids.
A Weapon Control Module can give extra accuracy to guided projectiles. The space requirement for the advanced weapon control is 2x2, so it's best suited for large vehicles.
This is the most effective control system available and outclasses all previous modules when stacked as well. It's the best one to use on the Hovercar and its limited slots.
Weapon Control Modules are "less effective" with beam and projectile weapons as, even though the accuracy is increased, your craft will never aim ahead but always shoot at the current position of the UFO, therefore the shot will most of the time miss unless you position your craft correctly instead of just giving them the target command and letting them do their own thing.
However, once in the correct position, the Weapon Control Module will be able to minimize stray shots that level the city, as long as you are not on the highest altitude shooting downwards. In combination with a Stasis Bomb this effect is immensly increased as well.
It also makes the Manual Craft Control (press M) more accurate on the beam and projectile weapons, allowing you to destroy downed UFOs without missing a shot and hitting the ground or a nearby building, which would reduce relations to the organization owning the property. Or allow you to properly only destroy a certain building without a stray shot hitting a different organizations property.
On missile weapons the effect is similar, by providing a more accurate initial shot it reduces the chance of the homing missile having to turn around to hit the UFO.
Value Stacking
The abilities of the weapon control modules can be stacked, however every additional module will have its accuracy reduced incrementally more for every module that is installed. The Nth module will have its power divided by N. This is known as a Harmonic Series.
For example:
- 1st module: 30% (30% / 1)
- 2nd module: 15% (30% / 2) with both modules adding 45% accuracy to the vehicle
- 3rd module: 10% (30% / 3) with all three modules adding 55% accuracy to the vehicle
- 4th module: 7.5% (30% / 4) with all four module adding 62% (62.5% rounded down) accuracy to the vehicle
The fractions are rounded down to an integer. If mixing weapon control sizes, the larger sizes are considered first in the formula.
In short, the more modules of the same type that are installed beyond the first 2 reduce the overall effectiveness of the accuracy boost.